Input interpretation
![formate anion | ion class](../image_source/cf3b82c623fdbacb8abb46f40e0be614.png)
formate anion | ion class
Result
![anions | carboxylate ions | oxoanions | polyatomic ions](../image_source/17f4a8e3f4d161dc34d54946f82f06a9.png)
anions | carboxylate ions | oxoanions | polyatomic ions
Ionic radii
![| 2-coordinate | 4-coordinate anions | 121 pm (median) 121 pm (oxide anion) (lowest) 121 pm (oxide anion) (highest) | 135 pm (median) 135 pm (hydroxide anion) (lowest) 135 pm (hydroxide anion) (highest) oxoanions | | 135 pm (median) 135 pm (hydroxide anion) (lowest) 135 pm (hydroxide anion) (highest) polyatomic ions | | 135 pm (median) 135 pm (hydroxide anion) (lowest) 135 pm (hydroxide anion) (highest) | 6-coordinate anions | 162 pm (median) 133 pm (fluoride anion) (lowest) 220 pm (iodide anion) (highest) oxoanions | 137 pm (median) 137 pm (hydroxide anion) (lowest) 137 pm (hydroxide anion) (highest) polyatomic ions | 137 pm (median) 137 pm (hydroxide anion) (lowest) 137 pm (hydroxide anion) (highest) | 8-coordinate anions | 142 pm (median) 142 pm (oxide anion) (lowest) 142 pm (oxide anion) (highest) | thermochemical radius anions | 179 pm (median) 133 pm (hydroxide anion) (lowest) 258 pm (sulfate anion) (highest) carboxylate ions | 160 pm (median) 158 pm (formate anion) (lowest) 162 pm (acetate anion) (highest) oxoanions | 186.5 pm (median) 122 pm (iodate anion) (lowest) 258 pm (sulfate anion) (highest) polyatomic ions | 191.5 pm (median) 133 pm (hydroxide anion) (lowest) 258 pm (sulfate anion) (highest)](../image_source/d21755ea218b955dbcfac747407b1db7.png)
| 2-coordinate | 4-coordinate anions | 121 pm (median) 121 pm (oxide anion) (lowest) 121 pm (oxide anion) (highest) | 135 pm (median) 135 pm (hydroxide anion) (lowest) 135 pm (hydroxide anion) (highest) oxoanions | | 135 pm (median) 135 pm (hydroxide anion) (lowest) 135 pm (hydroxide anion) (highest) polyatomic ions | | 135 pm (median) 135 pm (hydroxide anion) (lowest) 135 pm (hydroxide anion) (highest) | 6-coordinate anions | 162 pm (median) 133 pm (fluoride anion) (lowest) 220 pm (iodide anion) (highest) oxoanions | 137 pm (median) 137 pm (hydroxide anion) (lowest) 137 pm (hydroxide anion) (highest) polyatomic ions | 137 pm (median) 137 pm (hydroxide anion) (lowest) 137 pm (hydroxide anion) (highest) | 8-coordinate anions | 142 pm (median) 142 pm (oxide anion) (lowest) 142 pm (oxide anion) (highest) | thermochemical radius anions | 179 pm (median) 133 pm (hydroxide anion) (lowest) 258 pm (sulfate anion) (highest) carboxylate ions | 160 pm (median) 158 pm (formate anion) (lowest) 162 pm (acetate anion) (highest) oxoanions | 186.5 pm (median) 122 pm (iodate anion) (lowest) 258 pm (sulfate anion) (highest) polyatomic ions | 191.5 pm (median) 133 pm (hydroxide anion) (lowest) 258 pm (sulfate anion) (highest)